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Tytuł:
Study of methods of hydrocarbon recovery enhancement from the depleted oil fields
Autorzy:
Kondrat, O.
Powiązania:
https://bibliotekanauki.pl/articles/298753.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
field
wells
oil recovery
drilling
oil
Opis:
The article deals with the optimization of existing development system and oil recovery factor enhancement through the involvement to the development of productive bed areas with significant remaining oil reserves by using the hydrodynamic models of filtration processes of formation fluids in heterogeneous beds on the example of the sandstone deposit of the Boryslav field. The calculations for the different variants development in order to select the most rational one of the further development of a field were made. The task of the optimization was performed according to the criteria of the highest value of oil recovery factor.
Źródło:
AGH Drilling, Oil, Gas; 2013, 30, 1; 127-143
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of enhanced oil recovery methods to oil deposits
Zastosowanie zwiększonego wydobycia ze złóż ropy naftowej
Autorzy:
Briza, K.
Bujok, P.
Luner, K.
Powiązania:
https://bibliotekanauki.pl/articles/299566.pdf
Data publikacji:
2006
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
ropa naftowa
eksploatacja
oil
oil recovery
Opis:
At present, oil can be ranked among the most important fuels and energy minerals. In the majority of cases, primary recovery moves, however, merely in the range of 30-40% of original oil in place (geological reserves). But with deposits containing very viscous oil, percent recovery is much lower, i.e. from 5 to 10%, and the use of primary methods brings about only little economic effect. It is the application of so-called secondary and tertiary methods that enables the effective exploitation of reserves. In the submitted study, we present some results obtained by laboratory experiments with using polymers and surface-active agents in the displacement of highly viscous oil from reservoir rocks
Obecnie ropa naftowa należy do najważniejszych paliw i źródeł energii. Jednakże w większości przypadków ze złóż pozyskiwanych jest około 30-40% ropy. W przypadku złóż ropy charakteryzującej się dużą lepkością procent ten jest dużo mniejszy, tj. od 5 do 10%, a zastosowanie metod pierwotnych przynosi niewielkie zyski ekonomiczne. Dopiero zastosowanie tzw. metod wtórnych lub trzeciorzędnych gwarantuje efektywne wykorzystanie złóż. W artykule przedstawiono wyniki badań laboratoryjnych nad wykorzystaniem polimerów i surfaktantów do zwiększenia produkcji ropy o dużej lepkości
Źródło:
Wiertnictwo, Nafta, Gaz; 2006, 23, 1; 95-100
1507-0042
Pojawia się w:
Wiertnictwo, Nafta, Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enhanced Oil Recovery methods on offshore fields in the light of world literature
Autorzy:
Bednarz, P.
Stopa, J.
Powiązania:
https://bibliotekanauki.pl/articles/299090.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
EOR
enhanced oil recovery
offshore fields
Opis:
Enhanced Oil Recovery methods (EOR) are known since long time, but in recent years they have been used primarily in the U.S. mostly for research purposes. The increased interest in their use was in the 70's of the twentieth century, and associated with the increase in oil prices. Currently for several years there has been a return to the these methods, including offshore fields. Experience in the application of EOR methods in Poland is small, currently no exploitation is carried out using them. The purpose of this article is to present the current trends and latest technologies in enhanced oil recovery methods in terms of the applicability by the Polish oil companies. Statistical data of current and planned EOR methods in the world with special emphasis on offshore reservoirs is presented. Current trends in technological development of EOR methods are given, both which are still in the phase of laboratory tests and the first tests on fields such as: carbon dioxide flooding, water alternating gas injection, Iow salinity water injection, carbonated water injection, conventional technologies of polymer gels and thermally activated polymers.
Źródło:
AGH Drilling, Oil, Gas; 2014, 31, 2; 215-229
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enhanced oil recovery processes in sandstone reservoirs containing light oil in offshore fields
Autorzy:
Przybyłowicz, J.
Rychlicki, S.
Powiązania:
https://bibliotekanauki.pl/articles/298603.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
enhanced oil recovery
light oil
offshore fields
sandstone reservoirs
Opis:
Enhanced oil recovery methods can significantly increase recovery from offshore oil reservoirs provided that the appropriate method is selected. Enhanced oil recovery methods aim to recover the remaining original oil in place by applying additional energy sources and minimalize flow resistance in the field. The application of these technologies results in enhancement, or replacement of natural or physical processes of displacement and modifies the composition and physical properties of formation fluids. The use of EOR technologies in offshore environment is limited compared to onshore fields. Constraints imposed by the offshore environment are associated with technical difficulties as well as economic risk. Before choosing the most appropriate EOR method for particular environmental conditions the restrictions associated with: large well spacing, disposal geological description as well as availability and cost of EOR agents, weight and space constrains or high capital cost requirements should be considered. Reservoir lithology is limiting the applicability of specific EOR methods. This paper presents a comprehensive review of EOR projects which are appropriate or possible for sandstone reservoirs containing light-oil in offshore field. The possibilities and limitations of selected methods are introduced.
Źródło:
AGH Drilling, Oil, Gas; 2014, 31, 1; 99-116
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ecology Safety Technologies of Unconventional Oil Reserves Recovery for Sustainable Oil and Gas Industry Development
Autorzy:
Zyrin, V.
Ilinova, A.
Powiązania:
https://bibliotekanauki.pl/articles/123613.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
heavy oil
ecology safety
electrical enhanced oil recovery
downhole electroheating generator
carbon dioxide
carbon capture and storage (CCS)
oil recovery
Opis:
The problem of effective technology for heavy oil recovery nowadays has a great importance, because of worsening geological conditions of the developed deposits, decreasing recovery factor, increasing the part of heavy oil. For the future sustainable development of oil producing industry the involved technologies must require energy effectiveness and ecological safety. The paper proves the enhanced oil recovery methods necessity for heavy oil deposits, highlighted thermal technologies as the most effective. But traditional thermal treatment technologies is a source of air pollutant emission, such as CO, NO etc. The calculation of emissions for traditional steam generator is provided. Besides, the paper shows the effectiveness of electrical enhanced oil recovery methods. The advantages of associated gas as a fuel for cogeneration plants is shown. The main approaches to implementation of carbon dioxide sequestration technologies in the oil and gas industry of Russia are defined. Conceptual view of СО2-EOR technologies potential within the context of sustainable development of oil and gas industry are presented. On the basis of the conducted research a number of scientific research and practical areas of the CCS technology development are revealed.
Źródło:
Journal of Ecological Engineering; 2016, 17, 4; 35-40
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Petro-physical properties of geological formation in the aspect of possible CO2 sequestration
Autorzy:
Klempa, M.
Porzer, M.
Bujok, P.
Pavlus, J.
Rado, R.
Powiązania:
https://bibliotekanauki.pl/articles/298902.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
carbon dioxide
enhanced oil recovery (EOR)
porosity
permeability
Opis:
CO2 emissions and a future increasing trend can be, by some scientists, considered a serious menace for the sustainable development of mankind and the reduction is necessary for the environment protection. Carbon dioxide is one of the most important gases that causes greenhouse effect, which warms up the earth surface as a consequence of a different heat flow between the earth and the atmosphere.
Źródło:
AGH Drilling, Oil, Gas; 2013, 30, 1; 109-116
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of Efficiency of Steam-Thermal Treatment of High-Viscous Oil Formations Using Downhole Electric Steam Generators
Autorzy:
Malarev, Vadim
Kopteva, Alexandra
Koptev, Vladimir
Gotsul, Yulia
Powiązania:
https://bibliotekanauki.pl/articles/1839095.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
high-viscous oil
steam generator
oil recovery
thermal treatment
environmental safety
Opis:
The presented work investigates a method for developing hard-to-recover hydrocarbon reserves based on a downhole electrothermal steam generator, which is distinguished by energy efficiency, resource conservation and environmental safety. The paper presents an overview of downhole electro-thermal equipment that improves the quality of thermal treatment of the bottom-hole zone of high-viscous oil formations by separating steam in an electric steam generator and increasing its dryness, wherein thermal energy in the oil-formation medium affects all its components and completely changes ties and filtration conditions. This is expressed in a decrease in the viscosity of oil, its increased mobility, weakening of structural-mechanical properties, improvement of the conditions for capillary imbibition, and, as a result, an increase in the displacement factor and the final oil recovery. A simulation of the reservoir temperature field was performed by setting the heat flow in the ANSYS software package to understand the thermal processes in the steam generator and to more accurately determine the necessary heating parameters for a given water flow rate. The temperature field of the reservoir simulation after the heat treatment of the bottom-hole zone was conducted in the software package Femlab 3.5. The proposed simulation models can help in the development of the physical model and further research. This technology is environmentally friendly and does not emit emissions into the atmosphere.
Źródło:
Journal of Ecological Engineering; 2021, 22, 2; 17-24
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness research of physical and chemical methods appfication for oil recovery enhancing using the asp for the strutynsky oil field conditions
Autorzy:
Moroz, Lesya
Uhrynovskyi, Andrii
Popovych, Vasyl
Busko, Bohdan
Kogut, Galyna
Powiązania:
https://bibliotekanauki.pl/articles/409661.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
ASP solution
field
model
oil recovery coefficient
waterflooding pattern
Opis:
The purpose of the article is to enhance the oil recovery coefficient of lower Menilite deposits of the Strutynsky oil field by using an ASP solution (a mixture of three agents: alkaline, surfactant and polymer (ASP)). The tasks were solved by choosing an effective method of enhancing oil recovery by using EORgui software and hydrodynamic modelling software by using Petrel, Eclipse software. Calculations of computer simulations indicate the possibility and technological efficiency of residual oil extraction through the use of ASP solution. After using the method of oil recovery enhancing in the lower Menilite deposits of the Strutynsky oil field by means of ASP solution, the coefficient of final oil recovery will increase from the initial value of 10.4% to the predicted 17.6%. For the first time, geological and hydrodynamic models have been created for the conditions of the Lower Menilite deposits of the Strutynsky oil field, and the most appropriate method for oil recovery enhancing by using the EORgui program has been selected. The suggested method for oil recovery enhancing can be applied within the framework of the concept for reviving the Lower Menilithic deposits of the Strutynsky oil field, as well as in other oil fields of Ukraine, which are developed with waterflood patterns and have similar geological and physical characteristics.
Źródło:
Management Systems in Production Engineering; 2020, 2 (28); 104-111
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Underground CO2 storage - case study of Jastrząbka Stara structure, SE Poland
Autorzy:
Nosal, J.
Semyrka, R.
Powiązania:
https://bibliotekanauki.pl/articles/184144.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
geological sequestration of CO2
sequestration criteria
enhanced oil recovery
Opis:
Carbon dioxide injection into depleted oil fields is widely used. The injection enhances oil recovery and generates other advantages like: (1) decrease of carbon dioxide concentration in the atmosphere and (2) the possibility for CO2 emission trade. Geological and reservoir parameters of Jastrząbka Stara structure are discussed in this paper in the context of possible CO2 sequestration. Reservoir absorptivity and tightness, overburden thickness, storage capacity as well as social and economical aspects are taken into consideration. Based upon these factors, Jastrząbka Stara oil deposits may be classified as potential carbon dioxide storage site.Detailed data cannot be published due to Polish Oil and Gas Company (PGNiG SA) confidentiality requirements.
Źródło:
Geology, Geophysics and Environment; 2012, 38, 3; 329-338
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elastic interaction of couplings and pipes walls in tight threaded joints
Autorzy:
Paliychuk, I.
Powiązania:
https://bibliotekanauki.pl/articles/298908.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
oil and gas recovery
Opis:
Box threaded connections of pipes are used at oil and gas recovery. The pipe and the coupling interact elastically by their tapered surfaces with radial tightness in the thread and the sealing. Strength and impermeability of the connection depends on this interaction.The pipe and the coupling are thin-walled cylinders with the linear variable wall thickness. Their sections have varying lengthwise rigidity of walls and axial-symmetric bends. Therefore, their calculation differs from the Lame problem and from the calculation of cylinders with the fixed wall thickness.Physical and mathematical principles of the calculating parameters of elastic-strained state of all parts of pipe walls and coupling connections with the sealing box have been formulated in the article.
Źródło:
AGH Drilling, Oil, Gas; 2015, 32, 4; 731-737
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental investigations of oil displacement using the WAG method with carbon dioxide
Eksperymentalne badania wypierania ropy metodą WAG z wykorzystaniem dwutlenku węgla
Autorzy:
Wojnicki, M.
Powiązania:
https://bibliotekanauki.pl/articles/1835335.pdf
Data publikacji:
2017
Wydawca:
Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Tematy:
enhanced oil recovery
CO2-EOR
WAG
recovery factor
wspomaganie wydobycia ropy
współczynnik odropienia
Opis:
The article presents results of experimental studies of oil displacement efficiency by Water Alternating Gas (WAG) injection using carbon dioxide. WAG process was implemented as a tertiary recovery method, after waterflooding. The experiments were conducted on a long-core reservoir model at thermobaric conditions, which are characteristic for Polish carbonate reservoirs. Carbon dioxide injection was performed under miscible conditions (above minimum miscibility pressure). The results have practical importance because they confirm the suitability of conducting WAG process analysis on mentioned reservoir model and they present the WAG method effectiveness in specific reservoir conditions.
W artykule przedstawiono wyniki badań eksperymentalnych nad skutecznością wypierania ropy, metodą naprzemiennego zatłaczania wody i gazu (z ang. Water Alternating Gas – WAG), z wykorzystaniem dwutlenku węgla. Proces WAG zastosowano jako metodę trzecią wspomagania wydobycia, po uprzednim procesie nawadniania. Badania przeprowadzono na fizycznym modelu złoża, zbudowanym z długich rdzeni wiertniczych, w warunkach termobarycznych charakterystycznych dla polskich złóż ropy w kolektorach węglanowych. Zatłaczanie dwutlenku węgla odbywało się w warunkach mieszających (powyżej minimalnego ciśnienia zmieszania). Uzyskane wyniki mają charakter praktyczny, gdyż potwierdzają stosowność prowadzenia analiz procesu WAG na wspomnianym modelu złoża oraz przedstawiają skuteczność metody w konkretnych warunkach złożowych.
Źródło:
Nafta-Gaz; 2017, 73, 11; 864-870
0867-8871
Pojawia się w:
Nafta-Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prospects of CCS Projects Implementation in Russia: Environmental Protection and Economic Opportunities
Autorzy:
Tcvetkov, P.
Cherepovitsyn, A.
Powiązania:
https://bibliotekanauki.pl/articles/123141.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
environment
CO2 emission
sequestration
carbon capture and storage
oil recovery factor
Opis:
The urgency of environmental protection is determined by its intensive change because of human impact, which, among other things, accompanied by an increasing of carbon dioxide (CO2) emissions. One of the ways to reduce the emission is Carbon Capture and Storage (CCS) technologies. To date, developed countries have successfully implemented a number of CCS demonstration projects. Their main purpose is to study the effectiveness of CO2 storage. Russia is one of the world’s largest producers of CO2 emissions. However, CO2 capture and storage issues are not studied by Russian enterprises due to the absence of environmental taxes. The experience of developed countries shows that CO2 storage projects, in addition to the reduction of anthropogenic impact, can be commercially effective not only by reducing the tax burden. This review presents the analysis of international experience in the field of CO2 capture and storage. Given the immaturity of technology and lack of the necessary volume of statistical data, it was an attempt to determine the minimum conditions, which permit the implementation of CCS projects in Russian oil fields. On the basis of the Russian development forecast and the fuel balance structure the volumes of CO2 emissions in the 2016–2030 years were calculated. According to significant difference in opinions about the feasibility of CCS implementation in Russia, this review presents the main arguments for and against such projects. Evaluation of the potential effectiveness of CCS projects to enhance oil recovery factor showed that in spite of the absence of CO2 emissions taxes, such projects could be commercially effective in Russia due to the increase in oil recovery.
Źródło:
Journal of Ecological Engineering; 2016, 17, 2; 24-32
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soversenstvovanie tehnologii skvazinnogo uprugogo vozdeistvia na produktirnye plasty
Modernization of borehole elastic influence technology on reservoir
Autorzy:
Maksutin, A. V.
Powiązania:
https://bibliotekanauki.pl/articles/300147.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
ropa naftowa
przemysł wydobywczy
współczynnik sczerpania złoża
elastic influence technology
viscous oil
enhanced oil recovery
Opis:
Wydobycie ropy z większości złóż w ostatnich latach napotyka na szereg problemów. Ważną rolę odgrywa dobór odpowiedniej metody jej wydobycia, umożliwiającej zwiększenie współczynnika sczerpania złoża oraz równoczesne zwiększenie zasięgu eksploatacji. W artykule autor przeanalizował najbardziej rozpowszechnione obecnie metody intensyfikacji wydobycia. Najlepsze efekty dają metody wykorzystujące oddziaływanie fal: elektromagnetycznych, wibroakustycznych czy impulsywnych. W dalszej części autor opisuje działanie stworzonego w Instytucie Górniczym w Sankt-Petersburgu urządzenia "Pritok IM", który wykorzystuje oddziaływanie rezonansu na złoże.
Comparative analysis of the basic technologies and methods of influence on reservoirs was leaded for stimulation of production and increases of oil formations recovery on a late development stage. The application of considered technologies was studied oil field with hard recoverable oil in strongly mudded terrigenous and carbonate reservoirs with low porosity and perwcability. Efficiency and ecological safety of technologies was considered. The report considers the technology of borehole influence on productive layers by elastic impulses at resonance frequencies for stimulation of oil-and-gas wells and deposits for reservoir recovery increase. It also describes the physical principle, the method and equipment for stimulation oil-and-gas wells and deposits by this technology. The report also gives the result of successful use of the equipment "Pritok-1M" at deposits with various geological and technological conditions of different regions in Russia and China. Now researcher are conducted an opportunity of use this technology together with application of solvents, injection of compounds, thermal methods for carrying out of well treatments on oil fields with viscous oil and bitumens.
Źródło:
Wiertnictwo, Nafta, Gaz; 2008, 25, 2; 511-515
1507-0042
Pojawia się w:
Wiertnictwo, Nafta, Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the efficiency of restrained oil displacement using of enhancing oil recovery methods
Autorzy:
Uhrynovskyi, A. V.
Moroz, L. B.
Kogut, G. M.
Powiązania:
https://bibliotekanauki.pl/articles/2055748.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
oil
field
oil recovery coefficient
tertiary method
formation pressure maintenance
ropa naftowa
pole
współczynnik odzysku
Opis:
Purpose: The purpose of this article is to highlight the main problems that arise during the final stage of oil field development. Based on the identified problems using the EORgui program, Petroleum Solutions Ltd it is necessary to select the most effective method to increase oil recovery and study the most optimal tertiary oil recovery method using a hypothetical field model as an example, which will ensure the maximum oil recovery factor. Design/methodology/approach: Study of oil tertiary displacement efficiency by applying tertiary methods were performed using EORgui software from Petroleum Solutions Ltd and Petrel from Shlumberger. Findings: The results of the research show that the most optimal method of oil recovery increasing for this hypothetical field is the injection of carbon dioxide. When using this method, the oil recovery rate reaches 23%. Research limitations/implications: When using carbon dioxide, it is necessary to have sources of supply near the field, as well as increased corrosion of petroleum equipment is possible to occur. Practical implications: The use of the proposed approach is an important condition for the effective extraction of residual oil reserves for most fields developed using the reservoir pressure maintenance system. Originality/value: The article presents the characteristic features of residual oil location, reveals the conditions for effective usage of methods to increase oil recovery and their selection procedure.
Źródło:
Journal of Achievements in Materials and Manufacturing Engineering; 2022, 110, 1; 27--34
1734-8412
Pojawia się w:
Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potential for increasing oil recovery from Polish oil-fields by applying EOR methods
Analiza możliwości zwiększenia efektywności wydobycia ropy naftowej z polskich złóż w oparciu metody EOR
Autorzy:
Wojnarowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/216924.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
zaawansowane metody wydobycia
zatłaczanie CO2
efektywność wydobycia
enhanced oil recovery
CO2 injection
recovery efficiency
Opis:
The application of enhanced oil recovery processes (EOR - Enhanced Oil Recovery) on oil fields increases recovery efficiency. This is especially important in depleted and mature fields. This should result in an increase in production by raising the recovery factor (the ratio of oil produced to total geological reserves). This review presents the growing trend of gas injection (particularly carbon dioxide). In Polish oil fields, conventional methods are currently used. This means that much can still be done in this area. The selection of the optimum method for a given field is a complex procedure consisting of many stages, from collecting data about the field, through more advanced data interpretation, to working out a detailed proposal for the most efficient method of extraction. The pre-selection stage involves excluding methods which, owing to their specific mechanisms, cannot be used for a particular field - e.g. thermal methods in light oil fields or nitrogen injection into shallow reservoirs. This paper analyzes the potential for the application of EOR methods in Poland using a binary technical screening method. Forty-nine, mature Polish oil fields were analyzed. Apart from the rock type, other parameters were also taken into account in the analysis as follows: oil density and viscosity, average porosity, permeability and thickness of the reservoir, and also depth of deposit. In regard to the criteria for the EOR methods applied, the subjects of analysis are oil fields with medium density and viscosity and low permeability (double porosity in carbonate rocks), which are at a relatively shallow or medium depth of deposit. The results of analysis show that gas injection methods, especially carbon dioxide or nitrogen, have the highest potential. Application of this method must be preceded by detailed research and field pilot tests. International experience cannot be applied directly to Poland because of different field characteristics as well as technological and economic conditions.
Jednym ze sposobów zwiększenia efektywności wydobycia ropy naftowej jest zastosowanie zaawansowanych metod wydobycia (EOR - Enhanced Oil Recovery). W odróżnieniu od pierwotnych i wtórnych metod wydobycia, celem metod zaawansowanych jest dostarczenie do złoża dodatkowego źródła energii wspomagającego naturalne procesy lub je zastępującego, a także modyfikacja składu i właściwości fizycznych płynów złożowych w celu minimalizacji oporów przepływu w złożu. Metody te znajdują szczególnie zastosowanie w przypadku złóż w znacznym stopniu sczerpanych. Znaczenie tych metod w światowym wydobyciu rośnie, a dominującą rolę zaczynają odgrywać metody zatłaczania gazów w tym dwutlenku węgla. Polskie złoża ropy naftowej są obecnie eksploatowane z wykorzystaniem metod konwencjonalnych, co stwarza możliwości podniesienia efektywności wydobycia przez zastosowanie metod zaawansowanych. Proces doboru optymalnej metody do złoża jest złożony i wieloetapowy. W fazie wstępnej opiera się na podstawowych informacjach o złożu i stopniowo przechodzi do etapów zaawansowanych, kończących się opracowaniem szczegółowego projektu najefektywniejszej metody. W pracy przeanalizowano możliwości zastosowania tych metod na polskich złożach wykorzystując technikę opartą na podstawowych kryteriach ich stosowalności i logikę dwuwartościową. Przeanalizowano 49 złóż ropy naftowej z całego obszaru Polski występujących zarówno w skałach węglanowych jak i piaskowcowych. Z punktu widzenia kryteriów stosowania metod EOR, analizowane obiekty to złoża ropy o średniej gęstości i lepkości, niskiej przepuszczalności (w przypadku skał węglanowych podwójna porowatość), zalegające stosunkowo płytko lub na średniej głębokości. Uzyskane wyniki wskazują, że najszersze zastosowanie w warunkach polskich znaleźć mogą metody zatłaczania gazów, w tym dwutlenku węgla lub azotu. Wymaga to jednak przeprowadzenia szeregu badań i testów pilotażowych, gdyż doświadczenia amerykańskie nie mogą być bezpośrednio przenoszone ze względu na odmienne warunki złożowe, technologiczne i ekonomiczne.
Źródło:
Gospodarka Surowcami Mineralnymi; 2012, 28, 4; 47-58
0860-0953
Pojawia się w:
Gospodarka Surowcami Mineralnymi
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 35

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